<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=11"/>
<meta name="generator" content="Doxygen 1.9.4"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title>Flow-IPC: transport/native_socket_stream_acceptor.cpp Source File</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<link href="search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="search/searchdata.js"></script>
<script type="text/javascript" src="search/search.js"></script>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
 <tbody>
 <tr id="projectrow">
  <td id="projectalign">
   <div id="projectname">Flow-IPC<span id="projectnumber">&#160;1.0.2</span>
   </div>
   <div id="projectbrief">Flow-IPC project: Full implementation reference.</div>
  </td>
 </tr>
 </tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.9.4 -->
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&amp;dn=expat.txt MIT */
var searchBox = new SearchBox("searchBox", "search",'Search','.html');
/* @license-end */
</script>
<script type="text/javascript" src="menudata.js"></script>
<script type="text/javascript" src="menu.js"></script>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&amp;dn=expat.txt MIT */
$(function() {
  initMenu('',true,false,'search.php','Search');
  $(document).ready(function() { init_search(); });
});
/* @license-end */
</script>
<div id="main-nav"></div>
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
     onmouseover="return searchBox.OnSearchSelectShow()"
     onmouseout="return searchBox.OnSearchSelectHide()"
     onkeydown="return searchBox.OnSearchSelectKey(event)">
</div>

<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<iframe src="javascript:void(0)" frameborder="0" 
        name="MSearchResults" id="MSearchResults">
</iframe>
</div>

<div id="nav-path" class="navpath">
  <ul>
<li class="navelem"><a class="el" href="dir_0c017496b493ff066fbbe686970307ba.html">transport</a></li>  </ul>
</div>
</div><!-- top -->
<div class="header">
  <div class="headertitle"><div class="title">native_socket_stream_acceptor.cpp</div></div>
</div><!--header-->
<div class="contents">
<a href="native__socket__stream__acceptor_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno">    1</span><span class="comment">/* Flow-IPC: Core</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno">    2</span><span class="comment"> * Copyright 2023 Akamai Technologies, Inc.</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno">    3</span><span class="comment"> *</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno">    4</span><span class="comment"> * Licensed under the Apache License, Version 2.0 (the</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno">    5</span><span class="comment"> * &quot;License&quot;); you may not use this file except in</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno">    6</span><span class="comment"> * compliance with the License.  You may obtain a copy</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno">    7</span><span class="comment"> * of the License at</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno">    8</span><span class="comment"> *</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno">    9</span><span class="comment"> *   https://www.apache.org/licenses/LICENSE-2.0</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno">   10</span><span class="comment"> *</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno">   11</span><span class="comment"> * Unless required by applicable law or agreed to in</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno">   12</span><span class="comment"> * writing, software distributed under the License is</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno">   13</span><span class="comment"> * distributed on an &quot;AS IS&quot; BASIS, WITHOUT WARRANTIES OR</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno">   14</span><span class="comment"> * CONDITIONS OF ANY KIND, either express or implied.</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno">   15</span><span class="comment"> * See the License for the specific language governing</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno">   16</span><span class="comment"> * permissions and limitations under the License. */</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno">   17</span><span class="comment"></span> </div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno">   18</span><span class="comment">/// @file</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno">   19</span><span class="comment"></span><span class="preprocessor">#include &quot;<a class="code" href="native__socket__stream__acceptor_8hpp.html">ipc/transport/native_socket_stream_acceptor.hpp</a>&quot;</span></div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno">   20</span><span class="preprocessor">#include &quot;<a class="code" href="sync__io_2native__socket__stream__acceptor_8hpp.html">ipc/transport/sync_io/native_socket_stream_acceptor.hpp</a>&quot;</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno">   21</span><span class="preprocessor">#include &quot;<a class="code" href="sync__io_2native__socket__stream_8hpp.html">ipc/transport/sync_io/native_socket_stream.hpp</a>&quot;</span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno">   22</span><span class="preprocessor">#include &quot;<a class="code" href="ipc__core_2src_2ipc_2transport_2error_8hpp.html">ipc/transport/error.hpp</a>&quot;</span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno">   23</span><span class="preprocessor">#include &lt;flow/error/error.hpp&gt;</span></div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno">   24</span><span class="preprocessor">#include &lt;flow/common.hpp&gt;</span></div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno">   25</span><span class="preprocessor">#include &lt;boost/move/make_unique.hpp&gt;</span></div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno">   26</span> </div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno">   27</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceipc_1_1transport.html">ipc::transport</a></div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno">   28</span>{</div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno">   29</span> </div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno">   30</span><span class="comment">// Initializers.</span></div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno">   31</span> </div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno">   32</span><span class="comment">// It&#39;s a reference due to `static` things being initialized in unknown order before main().</span></div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno">   33</span><span class="keyword">const</span> <a class="code hl_typedef" href="namespaceipc_1_1transport.html#a33de1c256addb3964b839dc2dd407d24">Shared_name</a>&amp; <a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a0de2b6072026584ff1d46538533ed68b">Native_socket_stream_acceptor::S_RESOURCE_TYPE_ID</a> = Sync_io_obj::S_RESOURCE_TYPE_ID;</div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno">   34</span> </div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno">   35</span><span class="comment">// Implementations.</span></div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno">   36</span> </div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a77795acb028a95a4804f9b3ef18d99b0">   37</a></span><a class="code hl_function" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a77795acb028a95a4804f9b3ef18d99b0">Native_socket_stream_acceptor::Native_socket_stream_acceptor</a>(flow::log::Logger* logger_ptr,</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno">   38</span>                                                             <span class="keyword">const</span> <a class="code hl_class" href="classipc_1_1util_1_1Shared__name.html">Shared_name</a>&amp; absolute_name_arg,</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno">   39</span>                                                             <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>* err_code) :</div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno">   40</span>  flow::log::Log_context(logger_ptr, <a class="code hl_enumeration" href="namespaceipc.html#a4ccdeed058222c635745a4dc830e99f7">Log_component</a>::S_TRANSPORT),</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno">   41</span>  m_absolute_name(absolute_name_arg),</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno">   42</span>  m_worker(get_logger(), flow::util::ostream_op_string(*this)), <span class="comment">// Start the 1 thread.</span></div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno">   43</span>  m_next_peer_socket(*(m_worker.task_engine())) <span class="comment">// Steady state: start it as empty, per doc header.</span></div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno">   44</span>{</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno">   45</span>  <span class="keyword">using </span><a class="code hl_typedef" href="namespaceipc_1_1transport_1_1asio__local__stream__socket.html#a154986f10d30d850de86fc3924766e66">asio_local_stream_socket::Acceptor</a>;</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno">   46</span>  <span class="keyword">using </span><a class="code hl_typedef" href="namespaceipc_1_1transport_1_1asio__local__stream__socket.html#a05656e297b98f4c370841d2f9be52a5f">asio_local_stream_socket::Endpoint</a>;</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno">   47</span>  <span class="keyword">using </span><a class="code hl_function" href="namespaceipc_1_1transport_1_1asio__local__stream__socket.html#af872520154fc00afaa59c7eec607a225">asio_local_stream_socket::endpoint_at_shared_name</a>;</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno">   48</span>  <span class="keyword">using </span><a class="code hl_typedef" href="namespaceipc_1_1util.html#ae6ac47812a90d1287c61e0b7de7bc4f5">util::String_view</a>;</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno">   49</span>  <span class="keyword">using </span>flow::error::Runtime_error;</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno">   50</span>  <span class="keyword">using </span>boost::system::system_error;</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno">   51</span> </div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno">   52</span>  <span class="comment">/* For simplicity we&#39;ll just do all the work in thread W we&#39;re about to start.  Whether to do some initial stuff</span></div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno">   53</span><span class="comment">   * in this thread or not doesn&#39;t matter much.  We have promised that,</span></div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno">   54</span><span class="comment">   * upon our return -- no later -- the Native_socket_stream_acceptor</span></div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno">   55</span><span class="comment">   * will be listening (assuming no errors).  So wait for that (the startup) to finish using start() arg. */</span></div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno">   56</span>  <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a> sys_err_code;</div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno">   57</span> </div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno">   58</span>  FLOW_LOG_TRACE(<span class="stringliteral">&quot;Acceptor [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Awaiting initial setup/listening in worker thread.&quot;</span>);</div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno">   59</span>  <a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a2d397e09f2cfa198313ff5c31334080b">m_worker</a>.start([&amp;]() <span class="comment">// Execute all this synchronously in the thread.</span></div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno">   60</span>  {</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno">   61</span>    <span class="keyword">auto</span> <span class="keyword">const</span> asio_engine = <a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a2d397e09f2cfa198313ff5c31334080b">m_worker</a>.task_engine();</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno">   62</span> </div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno">   63</span>    FLOW_LOG_INFO(<span class="stringliteral">&quot;Acceptor [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Starting (am in worker thread).&quot;</span>);</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno">   64</span> </div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno">   65</span>    <span class="keyword">const</span> <span class="keyword">auto</span> local_endpoint = <a class="code hl_function" href="namespaceipc_1_1transport_1_1asio__local__stream__socket.html#af872520154fc00afaa59c7eec607a225">endpoint_at_shared_name</a>(get_logger(), <a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a35785c842d668ee13f556580d0045511">m_absolute_name</a>, &amp;sys_err_code);</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno">   66</span>    assert((local_endpoint == <a class="code hl_typedef" href="namespaceipc_1_1transport_1_1asio__local__stream__socket.html#a05656e297b98f4c370841d2f9be52a5f">Endpoint</a>()) == <span class="keywordtype">bool</span>(sys_err_code));</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno">   67</span>    <span class="keywordflow">if</span> (sys_err_code) <span class="comment">// It logged.</span></div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno">   68</span>    {</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno">   69</span>      <span class="keywordflow">return</span>; <span class="comment">// Escape the post() callback, that is.</span></div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno">   70</span>    }</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno">   71</span>    <span class="comment">// else</span></div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno">   72</span> </div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno">   73</span>    <span class="comment">// Start a listening acceptor socket at that endpoint!</span></div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno">   74</span> </div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno">   75</span>    <span class="keywordflow">try</span></div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno">   76</span>    {</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno">   77</span>      <span class="comment">// Throws on error.  (It&#39;s annoying there&#39;s no error-code-returning API; but it&#39;s normal in boost.asio ctors.)</span></div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno">   78</span>      <a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a946663a2ab4070babdc80091f5adfb28">m_acceptor</a>.reset(<span class="keyword">new</span> <a class="code hl_typedef" href="namespaceipc_1_1transport_1_1asio__local__stream__socket.html#a154986f10d30d850de86fc3924766e66">Acceptor</a>(*asio_engine, local_endpoint));</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno">   79</span>      <span class="comment">// @todo Is reuse_addr appropriate?  Do we run into the already-exists error in practice?  Revisit.</span></div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno">   80</span>    }</div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno">   81</span>    <span class="keywordflow">catch</span> (<span class="keyword">const</span> system_error&amp; exc)</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno">   82</span>    {</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno">   83</span>      assert(!<a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a946663a2ab4070babdc80091f5adfb28">m_acceptor</a>);</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno">   84</span>      FLOW_LOG_WARNING(<span class="stringliteral">&quot;Acceptor [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Unable to open/bind/listen native local stream socket; could &quot;</span></div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno">   85</span>                       <span class="stringliteral">&quot;be due to address/name clash; details logged below.&quot;</span>);</div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno">   86</span>      sys_err_code = exc.code();</div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno">   87</span>      FLOW_ERROR_SYS_ERROR_LOG_WARNING();</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno">   88</span>      <span class="keywordflow">return</span>; <span class="comment">// Escape the post() callback, that is.</span></div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno">   89</span>    }</div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno">   90</span> </div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno">   91</span>    FLOW_LOG_INFO(<span class="stringliteral">&quot;Acceptor [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: &quot;</span></div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno">   92</span>                  <span class="stringliteral">&quot;Successfully made endpoint and open/bind/listen-ed on it.  Ready for connections.&quot;</span>);</div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno">   93</span> </div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno">   94</span>    <span class="comment">/* OK!  Background-wait for the first incoming connection.  As explained in m_next_peer_socket doc header</span></div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno">   95</span><span class="comment">     * m_next_peer_socket is empty/unconnected at entry to each such background-wait; set to connected state</span></div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno">   96</span><span class="comment">     * by boost.asio as it launches our callback; and moved/emptied again by that callback, as it starts the next</span></div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno">   97</span><span class="comment">     * background-wait.  We have the just the one thread, so it&#39;s just a simple serial sequence. */</span></div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno">   98</span> </div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno">   99</span>    <a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a946663a2ab4070babdc80091f5adfb28">m_acceptor</a>-&gt;async_accept(<a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a7928656e82682f101af9a2fd6d4019cc">m_next_peer_socket</a>,</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno">  100</span>                             [<span class="keyword">this</span>](<span class="keyword">const</span> <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>&amp; async_err_code)</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno">  101</span>    {</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno">  102</span>      <span class="comment">// We are in thread W.</span></div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno">  103</span>      <a class="code hl_function" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#af52346c8df9efc457efaec35bc6c0807">on_next_peer_socket_or_error</a>(async_err_code);</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno">  104</span>    });</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno">  105</span> </div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno">  106</span>    assert(!sys_err_code); <span class="comment">// Success.</span></div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno">  107</span>  }); <span class="comment">// m_worker.start()</span></div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno">  108</span> </div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno">  109</span>  <span class="keywordflow">if</span> (sys_err_code)</div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno">  110</span>  {</div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno">  111</span>    <span class="comment">/* Just keep the thread going; even though it&#39;s not gonna be doing any listening.</span></div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno">  112</span><span class="comment">     * @todo We could stop it here no problem.  And it could help something, somewhere, marginally to not have an</span></div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno">  113</span><span class="comment">     * extra thread around.  But then this has to be coded for all over the place;</span></div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno">  114</span><span class="comment">     * didn&#39;t seem essential, particularly since these error conditions are highly irregular and likely to be very</span></div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno">  115</span><span class="comment">     * bad anyway. */</span></div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno">  116</span> </div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno">  117</span>    <span class="keywordflow">if</span> (err_code)</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno">  118</span>    {</div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno">  119</span>      *err_code = sys_err_code;</div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno">  120</span>      <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno">  121</span>    }</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno">  122</span>    <span class="comment">// else</span></div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno">  123</span>    <span class="keywordflow">throw</span> Runtime_error(sys_err_code, FLOW_UTIL_WHERE_AM_I_STR());</div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno">  124</span>  }</div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno">  125</span>  <span class="comment">// else</span></div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno">  126</span>  assert(!sys_err_code);</div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno">  127</span> </div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno">  128</span>  FLOW_LOG_INFO(<span class="stringliteral">&quot;Acceptor [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Ready for incoming connections.&quot;</span>);</div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno">  129</span>} <span class="comment">// Native_socket_stream_acceptor::Native_socket_stream_acceptor()</span></div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno">  130</span> </div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a71e907b904bcc8aff0042ca7efcc783b">  131</a></span><a class="code hl_function" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a71e907b904bcc8aff0042ca7efcc783b">Native_socket_stream_acceptor::~Native_socket_stream_acceptor</a>()</div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno">  132</span>{</div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno">  133</span>  <span class="keyword">using </span>flow::async::Single_thread_task_loop;</div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno">  134</span> </div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno">  135</span>  <span class="comment">// We are in thread U.  By contract in doc header, they must not call us from a completion handler (thread W).</span></div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno">  136</span> </div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno">  137</span>  FLOW_LOG_INFO(<span class="stringliteral">&quot;Acceptor [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Shutting down.  Next acceptor socket will close; all our internal &quot;</span></div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno">  138</span>                <span class="stringliteral">&quot;async handlers will be canceled; and worker thread thread will be joined.&quot;</span>);</div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno">  139</span> </div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno">  140</span>  <span class="comment">// stop() logic is similar to what happens in Native_socket_stream::Impl dtor.  Keeping cmnts light.</span></div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno">  141</span>  <a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a2d397e09f2cfa198313ff5c31334080b">m_worker</a>.stop();</div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno">  142</span>  <span class="comment">// Thread W is (synchronously!) no more.</span></div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno">  143</span> </div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno">  144</span>  <span class="comment">// Post-stop() poll() logic is similar to what happens in Native_socket_stream::Impl dtor.  Keeping cmnts light.</span></div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno">  145</span> </div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno">  146</span>  FLOW_LOG_INFO(<span class="stringliteral">&quot;Acceptor [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Continuing shutdown.  Next we will run pending handlers from some &quot;</span></div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno">  147</span>                <span class="stringliteral">&quot;other thread.  In this user thread we will await those handlers&#39; completion and then return.&quot;</span>);</div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno">  148</span>  Single_thread_task_loop one_thread(get_logger(), <span class="stringliteral">&quot;temp_deinit&quot;</span>);</div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno">  149</span>  one_thread.start([&amp;]()</div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno">  150</span>  {</div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno">  151</span>    FLOW_LOG_INFO(<span class="stringliteral">&quot;Acceptor [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: &quot;</span></div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno">  152</span>                  <span class="stringliteral">&quot;In transient finisher thread: Shall run all pending internal handlers (typically none).&quot;</span>);</div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno">  153</span> </div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno">  154</span>    <span class="keyword">const</span> <span class="keyword">auto</span> task_engine = <a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a2d397e09f2cfa198313ff5c31334080b">m_worker</a>.task_engine();</div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno">  155</span>    task_engine-&gt;restart();</div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno">  156</span>    <span class="keyword">const</span> <span class="keyword">auto</span> count = task_engine-&gt;poll();</div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno">  157</span>    <span class="keywordflow">if</span> (count != 0)</div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno">  158</span>    {</div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno">  159</span>      FLOW_LOG_INFO(<span class="stringliteral">&quot;Acceptor [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: &quot;</span></div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno">  160</span>                    <span class="stringliteral">&quot;In transient finisher thread: Ran [&quot;</span> &lt;&lt; count &lt;&lt; <span class="stringliteral">&quot;] internal handlers after all.&quot;</span>);</div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno">  161</span>    }</div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno">  162</span>    task_engine-&gt;stop();</div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno">  163</span> </div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno">  164</span>    FLOW_LOG_INFO(<span class="stringliteral">&quot;Acceptor [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: &quot;</span></div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno">  165</span>                  <span class="stringliteral">&quot;In transient finisher thread: Shall run all pending user handlers (feeding operation-aborted).&quot;</span>);</div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno">  166</span> </div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno">  167</span>    <span class="keywordflow">while</span> (!<a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a5d2e731d023d9c6465e01fa84a6e5138">m_pending_user_requests_q</a>.empty())</div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno">  168</span>    {</div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno">  169</span>      FLOW_LOG_TRACE(<span class="stringliteral">&quot;Running a queued async-accept completion handler.&quot;</span>);</div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno">  170</span>      <a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a5d2e731d023d9c6465e01fa84a6e5138">m_pending_user_requests_q</a>.front()</div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno">  171</span>        -&gt;m_on_done_func(<a class="code hl_enumvalue" href="namespaceipc_1_1transport_1_1error.html#adfef15ef4e76cc55d652fbd9c2797297afe29343445a7bf167cc186a44bd2c6ed">error::Code::S_OBJECT_SHUTDOWN_ABORTED_COMPLETION_HANDLER</a>);</div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno">  172</span>      <a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a5d2e731d023d9c6465e01fa84a6e5138">m_pending_user_requests_q</a>.pop();</div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno">  173</span>      FLOW_LOG_TRACE(<span class="stringliteral">&quot;User accept handler finished.  Popped from user request deficit queue.&quot;</span>);</div>
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno">  174</span>    } <span class="comment">// while (!m_pending_user_requests_q.empty())</span></div>
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno">  175</span> </div>
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno">  176</span>    FLOW_LOG_INFO(<span class="stringliteral">&quot;Transient finisher exiting.&quot;</span>);</div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno">  177</span>  }); <span class="comment">// one_thread.start()</span></div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno">  178</span>  <span class="comment">// Here thread exits/joins synchronously.</span></div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno">  179</span>} <span class="comment">// Native_socket_stream_acceptor::~Native_socket_stream_acceptor()</span></div>
<div class="line"><a id="l00180" name="l00180"></a><span class="lineno">  180</span> </div>
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#af52346c8df9efc457efaec35bc6c0807">  181</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#af52346c8df9efc457efaec35bc6c0807">Native_socket_stream_acceptor::on_next_peer_socket_or_error</a>(<span class="keyword">const</span> <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>&amp; sys_err_code)</div>
<div class="line"><a id="l00182" name="l00182"></a><span class="lineno">  182</span>{</div>
<div class="line"><a id="l00183" name="l00183"></a><span class="lineno">  183</span>  <span class="keyword">using </span><a class="code hl_typedef" href="namespaceipc_1_1transport_1_1asio__local__stream__socket.html#a1788f9dbd896bb71b3693f9ae25b40ae">asio_local_stream_socket::Peer_socket</a>;</div>
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno">  184</span>  <span class="keyword">using </span>flow::util::ostream_op_string;</div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno">  185</span>  <span class="keyword">using </span>std::holds_alternative;</div>
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno">  186</span> </div>
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno">  187</span>  <span class="comment">// We are in thread W.</span></div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno">  188</span>  <span class="keywordflow">if</span> (sys_err_code == boost::asio::error::operation_aborted)</div>
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno">  189</span>  {</div>
<div class="line"><a id="l00190" name="l00190"></a><span class="lineno">  190</span>    <span class="keywordflow">return</span>; <span class="comment">// Stuff is shutting down.  GTFO.</span></div>
<div class="line"><a id="l00191" name="l00191"></a><span class="lineno">  191</span>  }</div>
<div class="line"><a id="l00192" name="l00192"></a><span class="lineno">  192</span>  <span class="comment">// else</span></div>
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno">  193</span>  assert(sys_err_code != boost::asio::error::would_block); <span class="comment">// Not possible for async handlers.</span></div>
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno">  194</span> </div>
<div class="line"><a id="l00195" name="l00195"></a><span class="lineno">  195</span>  FLOW_LOG_TRACE(<span class="stringliteral">&quot;Acceptor [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Incoming connection, or error when trying to accept one.&quot;</span>);</div>
<div class="line"><a id="l00196" name="l00196"></a><span class="lineno">  196</span>  <span class="keywordflow">if</span> (sys_err_code)</div>
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno">  197</span>  {</div>
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno">  198</span>    <span class="comment">// Close/empty the potentially-almost-kinda-accepted socket.  Probably unnecessary but can&#39;t hurt.</span></div>
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno">  199</span>    <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a> dummy;</div>
<div class="line"><a id="l00200" name="l00200"></a><span class="lineno">  200</span>    <a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a7928656e82682f101af9a2fd6d4019cc">m_next_peer_socket</a>.close(dummy);</div>
<div class="line"><a id="l00201" name="l00201"></a><span class="lineno">  201</span> </div>
<div class="line"><a id="l00202" name="l00202"></a><span class="lineno">  202</span>    <span class="keywordflow">if</span> (sys_err_code == boost::asio::error::connection_aborted)</div>
<div class="line"><a id="l00203" name="l00203"></a><span class="lineno">  203</span>    {</div>
<div class="line"><a id="l00204" name="l00204"></a><span class="lineno">  204</span>      FLOW_LOG_WARNING(<span class="stringliteral">&quot;Incoming connection aborted halfway during connection; this is quite weird but &quot;</span></div>
<div class="line"><a id="l00205" name="l00205"></a><span class="lineno">  205</span>                       <span class="stringliteral">&quot;should not be fatal.  Ignoring.  Still listening.&quot;</span>);</div>
<div class="line"><a id="l00206" name="l00206"></a><span class="lineno">  206</span>      <span class="comment">// Fall through.</span></div>
<div class="line"><a id="l00207" name="l00207"></a><span class="lineno">  207</span>    }</div>
<div class="line"><a id="l00208" name="l00208"></a><span class="lineno">  208</span>    <span class="keywordflow">else</span></div>
<div class="line"><a id="l00209" name="l00209"></a><span class="lineno">  209</span>    {</div>
<div class="line"><a id="l00210" name="l00210"></a><span class="lineno">  210</span>      FLOW_LOG_WARNING(<span class="stringliteral">&quot;Acceptor [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: The background accept failed fatally.  &quot;</span></div>
<div class="line"><a id="l00211" name="l00211"></a><span class="lineno">  211</span>                       <span class="stringliteral">&quot;Closing acceptor; no longer listening.  Details follow.&quot;</span>);</div>
<div class="line"><a id="l00212" name="l00212"></a><span class="lineno">  212</span>      FLOW_ERROR_SYS_ERROR_LOG_WARNING();</div>
<div class="line"><a id="l00213" name="l00213"></a><span class="lineno">  213</span> </div>
<div class="line"><a id="l00214" name="l00214"></a><span class="lineno">  214</span>      <span class="comment">// Close/destroy the acceptor.  And of course don&#39;t call async_accept() on it again as we normally would below.</span></div>
<div class="line"><a id="l00215" name="l00215"></a><span class="lineno">  215</span>      <a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a946663a2ab4070babdc80091f5adfb28">m_acceptor</a>-&gt;close(dummy);</div>
<div class="line"><a id="l00216" name="l00216"></a><span class="lineno">  216</span> </div>
<div class="line"><a id="l00217" name="l00217"></a><span class="lineno">  217</span>      <span class="comment">// Queue up and handle result.</span></div>
<div class="line"><a id="l00218" name="l00218"></a><span class="lineno">  218</span> </div>
<div class="line"><a id="l00219" name="l00219"></a><span class="lineno">  219</span>      <span class="comment">/* Shouldn&#39;t have gotten here if any other error had been emitted.  We would&#39;ve closed m_acceptor and certainly</span></div>
<div class="line"><a id="l00220" name="l00220"></a><span class="lineno">  220</span><span class="comment">       * not run m_acceptor-&gt;async_accept() again. */</span></div>
<div class="line"><a id="l00221" name="l00221"></a><span class="lineno">  221</span>      assert(<a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#ac04049d9b4c38f2a46d7f26192b17b69">m_pending_results_q</a>.empty() || (!holds_alternative&lt;Error_code&gt;(<a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#ac04049d9b4c38f2a46d7f26192b17b69">m_pending_results_q</a>.back())));</div>
<div class="line"><a id="l00222" name="l00222"></a><span class="lineno">  222</span> </div>
<div class="line"><a id="l00223" name="l00223"></a><span class="lineno">  223</span>      <span class="comment">// We are in steady state.  Make this one change...</span></div>
<div class="line"><a id="l00224" name="l00224"></a><span class="lineno">  224</span>      <a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#ac04049d9b4c38f2a46d7f26192b17b69">m_pending_results_q</a>.push(sys_err_code);</div>
<div class="line"><a id="l00225" name="l00225"></a><span class="lineno">  225</span>      <span class="comment">// ...and immediately handle it appropriately to get back into steady state.</span></div>
<div class="line"><a id="l00226" name="l00226"></a><span class="lineno">  226</span>      <a class="code hl_function" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a6c7c14574c041bcfd1ccb45137b486b4">finalize_q_surplus_on_error</a>();</div>
<div class="line"><a id="l00227" name="l00227"></a><span class="lineno">  227</span> </div>
<div class="line"><a id="l00228" name="l00228"></a><span class="lineno">  228</span>      <span class="comment">// Do *not* m_acceptor-&gt;async_accept() again.  (It&#39;s closed actually, so we couldn&#39;t anyway.)</span></div>
<div class="line"><a id="l00229" name="l00229"></a><span class="lineno">  229</span>      <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00230" name="l00230"></a><span class="lineno">  230</span>    }</div>
<div class="line"><a id="l00231" name="l00231"></a><span class="lineno">  231</span>  } <span class="comment">// if (sys_err_code)</span></div>
<div class="line"><a id="l00232" name="l00232"></a><span class="lineno">  232</span>  <span class="keywordflow">else</span> <span class="comment">// if (!sys_err_code)</span></div>
<div class="line"><a id="l00233" name="l00233"></a><span class="lineno">  233</span>  {</div>
<div class="line"><a id="l00234" name="l00234"></a><span class="lineno">  234</span>    <span class="comment">/* We&#39;ll enqueue the resulting peer socket handle from the new socket.  There are a few subtleties:</span></div>
<div class="line"><a id="l00235" name="l00235"></a><span class="lineno">  235</span><span class="comment">     *   - We need to make a new Peer, which must be passed the boost.asio Peer_socket, or similar,</span></div>
<div class="line"><a id="l00236" name="l00236"></a><span class="lineno">  236</span><span class="comment">     *     to wrap.  On that guy, they will internally call things like Peer_socket::async_read_some().</span></div>
<div class="line"><a id="l00237" name="l00237"></a><span class="lineno">  237</span><span class="comment">     *   - m_next_peer_socket, basically, stores two pieces of data: the raw native socket handle (of new peer socket),</span></div>
<div class="line"><a id="l00238" name="l00238"></a><span class="lineno">  238</span><span class="comment">     *     and the Task_engine that is to be used to execute the logic of all async_ calls on it (e.g.,</span></div>
<div class="line"><a id="l00239" name="l00239"></a><span class="lineno">  239</span><span class="comment">     *     Peer_socket::async_read_some()) (basically 1-1 to our m_worker).</span></div>
<div class="line"><a id="l00240" name="l00240"></a><span class="lineno">  240</span><span class="comment">     *     - Can we pass m_next_peer_socket into the Native_socket_stream ctor then?  Well, no.  Why?  Answer:</span></div>
<div class="line"><a id="l00241" name="l00241"></a><span class="lineno">  241</span><span class="comment">     *       Suppose we did.  Now suppose Native_socket_stream calls async_read_some() on it.  Suppose some bytes are</span></div>
<div class="line"><a id="l00242" name="l00242"></a><span class="lineno">  242</span><span class="comment">     *       indeed read from the opposing peer.  Now some callback internal to the Native_socket_stream must be called.</span></div>
<div class="line"><a id="l00243" name="l00243"></a><span class="lineno">  243</span><span class="comment">     *       On what thread would it be called?  Answer: per above, on m_worker.  Do we want that?  Well, no, because</span></div>
<div class="line"><a id="l00244" name="l00244"></a><span class="lineno">  244</span><span class="comment">     *       that class sets up its own thread for that.  (Briefly: Actually, why not use one thread?  Answer: Even</span></div>
<div class="line"><a id="l00245" name="l00245"></a><span class="lineno">  245</span><span class="comment">     *       if we thought that was a good design for perf or something, consider that m_worker goes away in</span></div>
<div class="line"><a id="l00246" name="l00246"></a><span class="lineno">  246</span><span class="comment">     *       our dtor, so we&#39;d have to actively share m_worker (maybe via shared_ptr) with the offshoot</span></div>
<div class="line"><a id="l00247" name="l00247"></a><span class="lineno">  247</span><span class="comment">     *       Native_socket_stream.  Simply, we just aren&#39;t designing it that way.  We want them to run an independent</span></div>
<div class="line"><a id="l00248" name="l00248"></a><span class="lineno">  248</span><span class="comment">     *       thread, though this is not where I will justify that.)</span></div>
<div class="line"><a id="l00249" name="l00249"></a><span class="lineno">  249</span><span class="comment">     *     - So what to do?  I was hoping there&#39;d be a move-constructor-ish thing in Peer_socket,</span></div>
<div class="line"><a id="l00250" name="l00250"></a><span class="lineno">  250</span><span class="comment">     *       but there isn&#39;t one that lets one also specify the Task_engine; and it isn&#39;t apparently possible to change</span></div>
<div class="line"><a id="l00251" name="l00251"></a><span class="lineno">  251</span><span class="comment">     *       a Peer_socket&#39;s Task_engine (thing returned by .get_executor()) after construction.</span></div>
<div class="line"><a id="l00252" name="l00252"></a><span class="lineno">  252</span><span class="comment">     *       Worst-case, we could suck out the native socket handle (see just above) and then Native_socket_stream</span></div>
<div class="line"><a id="l00253" name="l00253"></a><span class="lineno">  253</span><span class="comment">     *       ctor could construct and take over that guy.  It should be entirely safe, since it is a new socket, and</span></div>
<div class="line"><a id="l00254" name="l00254"></a><span class="lineno">  254</span><span class="comment">     *       we haven&#39;t started any async ops on it yet, but it still feels dodgy.  Turns out the safe way to do it</span></div>
<div class="line"><a id="l00255" name="l00255"></a><span class="lineno">  255</span><span class="comment">     *       is basically that, but one can Peer_socket::release() to &quot;officially&quot; safely &quot;eject&quot; an open</span></div>
<div class="line"><a id="l00256" name="l00256"></a><span class="lineno">  256</span><span class="comment">     *       socket.  So we do that, and Peer_socket can take over the &quot;ejected&quot; native socket handle in</span></div>
<div class="line"><a id="l00257" name="l00257"></a><span class="lineno">  257</span><span class="comment">     *       its ctor.</span></div>
<div class="line"><a id="l00258" name="l00258"></a><span class="lineno">  258</span><span class="comment">     *   - We promise in our contract to propagate get_logger() to any child peer sockets.  This is where it happens. */</span></div>
<div class="line"><a id="l00259" name="l00259"></a><span class="lineno">  259</span> </div>
<div class="line"><a id="l00260" name="l00260"></a><span class="lineno">  260</span>    <span class="comment">/* .release() won&#39;t throw except in Windows &lt;8.1, where it&#39;ll always throw (unsupported; per boost.asio docs).</span></div>
<div class="line"><a id="l00261" name="l00261"></a><span class="lineno">  261</span><span class="comment">     * We don&#39;t worry about Windows generally; and anyway in .hpp somewhere we already should&#39;ve ensured Linux in</span></div>
<div class="line"><a id="l00262" name="l00262"></a><span class="lineno">  262</span><span class="comment">     * particular.  Just re-check that for sanity for now.  (This is a bit of future-proofing, so that the problem is</span></div>
<div class="line"><a id="l00263" name="l00263"></a><span class="lineno">  263</span><span class="comment">     * obvious if porting the code.) */</span></div>
<div class="line"><a id="l00264" name="l00264"></a><span class="lineno">  264</span><span class="preprocessor">#ifndef FLOW_OS_LINUX</span></div>
<div class="line"><a id="l00265" name="l00265"></a><span class="lineno">  265</span>    <span class="keyword">static_assert</span>(<span class="keyword">false</span>, <span class="stringliteral">&quot;Should not have gotten to this line; should have required Linux; &quot;</span></div>
<div class="line"><a id="l00266" name="l00266"></a><span class="lineno">  266</span>                           <span class="stringliteral">&quot;the next thing assumes not-Win-&lt;8.1.&quot;</span>);</div>
<div class="line"><a id="l00267" name="l00267"></a><span class="lineno">  267</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00268" name="l00268"></a><span class="lineno">  268</span>    <span class="comment">// Could store a raw handle too, but this is exactly as fast and adds some logging niceties.</span></div>
<div class="line"><a id="l00269" name="l00269"></a><span class="lineno">  269</span>    <a class="code hl_struct" href="structipc_1_1util_1_1Native__handle.html">Native_handle</a> native_peer_socket(<a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a7928656e82682f101af9a2fd6d4019cc">m_next_peer_socket</a>.release());</div>
<div class="line"><a id="l00270" name="l00270"></a><span class="lineno">  270</span>    assert(!<a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a7928656e82682f101af9a2fd6d4019cc">m_next_peer_socket</a>.is_open()); <span class="comment">// Non-exhaustive sanity check that it&#39;s back in empty/unconnected state.</span></div>
<div class="line"><a id="l00271" name="l00271"></a><span class="lineno">  271</span>    FLOW_LOG_TRACE(<span class="stringliteral">&quot;Acceptor [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: &quot;</span></div>
<div class="line"><a id="l00272" name="l00272"></a><span class="lineno">  272</span>                   <span class="stringliteral">&quot;Ejected ownership of new incoming peer socket [&quot;</span> &lt;&lt; native_peer_socket &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
<div class="line"><a id="l00273" name="l00273"></a><span class="lineno">  273</span> </div>
<div class="line"><a id="l00274" name="l00274"></a><span class="lineno">  274</span>    <span class="keyword">auto</span> new_peer</div>
<div class="line"><a id="l00275" name="l00275"></a><span class="lineno">  275</span>      = boost::movelib::make_unique&lt;Peer&gt;</div>
<div class="line"><a id="l00276" name="l00276"></a><span class="lineno">  276</span>          (get_logger(),</div>
<div class="line"><a id="l00277" name="l00277"></a><span class="lineno">  277</span>           <span class="comment">// Nickname is, like, &quot;_pathName_of_this_acceptor=&gt;native_hndl[35]&quot; (as I write this).</span></div>
<div class="line"><a id="l00278" name="l00278"></a><span class="lineno">  278</span>           ostream_op_string(<a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a35785c842d668ee13f556580d0045511">m_absolute_name</a>.<a class="code hl_function" href="classipc_1_1util_1_1Shared__name.html#ae89e1e061f87ffe0288514e254837595">str</a>(), <span class="stringliteral">&quot;=&gt;&quot;</span>, native_peer_socket),</div>
<div class="line"><a id="l00279" name="l00279"></a><span class="lineno">  279</span>           std::move(native_peer_socket));</div>
<div class="line"><a id="l00280" name="l00280"></a><span class="lineno">  280</span>    <span class="comment">// Caution: native_peer_socket is now invalid.</span></div>
<div class="line"><a id="l00281" name="l00281"></a><span class="lineno">  281</span>    assert(native_peer_socket.<a class="code hl_function" href="structipc_1_1util_1_1Native__handle.html#a11bd62ce0a7bef4bdfe666201c26d4dc">null</a>());</div>
<div class="line"><a id="l00282" name="l00282"></a><span class="lineno">  282</span> </div>
<div class="line"><a id="l00283" name="l00283"></a><span class="lineno">  283</span>    <span class="comment">// Queue up and handle result.</span></div>
<div class="line"><a id="l00284" name="l00284"></a><span class="lineno">  284</span> </div>
<div class="line"><a id="l00285" name="l00285"></a><span class="lineno">  285</span>    <span class="comment">// As above -- on error we wouldn&#39;t have kept trying to accept more.</span></div>
<div class="line"><a id="l00286" name="l00286"></a><span class="lineno">  286</span>    assert(<a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#ac04049d9b4c38f2a46d7f26192b17b69">m_pending_results_q</a>.empty() || (!holds_alternative&lt;Error_code&gt;(<a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#ac04049d9b4c38f2a46d7f26192b17b69">m_pending_results_q</a>.back())));</div>
<div class="line"><a id="l00287" name="l00287"></a><span class="lineno">  287</span> </div>
<div class="line"><a id="l00288" name="l00288"></a><span class="lineno">  288</span>    <span class="comment">// We are in steady state.  Make this one change...</span></div>
<div class="line"><a id="l00289" name="l00289"></a><span class="lineno">  289</span>    <a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#ac04049d9b4c38f2a46d7f26192b17b69">m_pending_results_q</a>.emplace(std::move(new_peer)); <span class="comment">// (new_peer may now be hosed.)</span></div>
<div class="line"><a id="l00290" name="l00290"></a><span class="lineno">  290</span>    <span class="comment">// ...and immediately handle it appropriately to get back into steady state.</span></div>
<div class="line"><a id="l00291" name="l00291"></a><span class="lineno">  291</span>    <a class="code hl_function" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#ab9744191a6b5d7d05b7b2b96fcda84d6">finalize_q_surplus_on_success</a>();</div>
<div class="line"><a id="l00292" name="l00292"></a><span class="lineno">  292</span>  } <span class="comment">// else if (!sys_err_code)</span></div>
<div class="line"><a id="l00293" name="l00293"></a><span class="lineno">  293</span> </div>
<div class="line"><a id="l00294" name="l00294"></a><span class="lineno">  294</span>  <span class="comment">// Either there was success (!sys_err_code), or a non-fatal error (otherwise).  Keep the async chain going.</span></div>
<div class="line"><a id="l00295" name="l00295"></a><span class="lineno">  295</span> </div>
<div class="line"><a id="l00296" name="l00296"></a><span class="lineno">  296</span>  <span class="comment">/* @todo Does it help perf-wise to spin through non-blocking accepts here (in case more incoming peers have been</span></div>
<div class="line"><a id="l00297" name="l00297"></a><span class="lineno">  297</span><span class="comment">   * queued up by OS) until would-block?  I (ygoldfel) have done it in the past when doing TCP/UDP reads, but I never</span></div>
<div class="line"><a id="l00298" name="l00298"></a><span class="lineno">  298</span><span class="comment">   * really checked whether it&#39;s beneficial, and anyway this situation is not really the same (incoming load</span></div>
<div class="line"><a id="l00299" name="l00299"></a><span class="lineno">  299</span><span class="comment">   * should be much less intense here). */</span></div>
<div class="line"><a id="l00300" name="l00300"></a><span class="lineno">  300</span> </div>
<div class="line"><a id="l00301" name="l00301"></a><span class="lineno">  301</span>  FLOW_LOG_TRACE(<span class="stringliteral">&quot;Acceptor [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Starting the next background accept.&quot;</span>);</div>
<div class="line"><a id="l00302" name="l00302"></a><span class="lineno">  302</span>  <a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a946663a2ab4070babdc80091f5adfb28">m_acceptor</a>-&gt;async_accept(<a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a7928656e82682f101af9a2fd6d4019cc">m_next_peer_socket</a>,</div>
<div class="line"><a id="l00303" name="l00303"></a><span class="lineno">  303</span>                           [<span class="keyword">this</span>](<span class="keyword">const</span> <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>&amp; async_err_code)</div>
<div class="line"><a id="l00304" name="l00304"></a><span class="lineno">  304</span>  {</div>
<div class="line"><a id="l00305" name="l00305"></a><span class="lineno">  305</span>    <span class="comment">// We are in thread W.</span></div>
<div class="line"><a id="l00306" name="l00306"></a><span class="lineno">  306</span>    <a class="code hl_function" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#af52346c8df9efc457efaec35bc6c0807">on_next_peer_socket_or_error</a>(async_err_code);</div>
<div class="line"><a id="l00307" name="l00307"></a><span class="lineno">  307</span>  });</div>
<div class="line"><a id="l00308" name="l00308"></a><span class="lineno">  308</span>} <span class="comment">// Native_socket_stream_acceptor::on_next_peer_socket_or_error()</span></div>
<div class="line"><a id="l00309" name="l00309"></a><span class="lineno">  309</span> </div>
<div class="line"><a id="l00310" name="l00310"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a2063fff89b58cc5b07ee7651f9e42366">  310</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a2063fff89b58cc5b07ee7651f9e42366">Native_socket_stream_acceptor::async_accept_impl</a>(<a class="code hl_class" href="classipc_1_1transport_1_1sync__io_1_1Native__socket__stream.html">Peer</a>* target_peer, <a class="code hl_typedef" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#ab5fa8c28eb4dbe2ae2e4f1b25d520857">On_peer_accepted_func</a>&amp;&amp; on_done_func)</div>
<div class="line"><a id="l00311" name="l00311"></a><span class="lineno">  311</span>{</div>
<div class="line"><a id="l00312" name="l00312"></a><span class="lineno">  312</span>  <span class="keyword">using </span>boost::movelib::make_unique;</div>
<div class="line"><a id="l00313" name="l00313"></a><span class="lineno">  313</span>  <span class="keyword">using </span>std::get;</div>
<div class="line"><a id="l00314" name="l00314"></a><span class="lineno">  314</span>  <span class="keyword">using </span>std::holds_alternative;</div>
<div class="line"><a id="l00315" name="l00315"></a><span class="lineno">  315</span> </div>
<div class="line"><a id="l00316" name="l00316"></a><span class="lineno">  316</span>  <span class="comment">// We are in thread U/W.  (They *are* allowed to invoke async_accept() from within their completion handler.)</span></div>
<div class="line"><a id="l00317" name="l00317"></a><span class="lineno">  317</span> </div>
<div class="line"><a id="l00318" name="l00318"></a><span class="lineno">  318</span>  <span class="comment">/* We don&#39;t lock our state, hence we do everything in thread W.</span></div>
<div class="line"><a id="l00319" name="l00319"></a><span class="lineno">  319</span><span class="comment">   *</span></div>
<div class="line"><a id="l00320" name="l00320"></a><span class="lineno">  320</span><span class="comment">   * If we are in thread U:  Post on thread W.</span></div>
<div class="line"><a id="l00321" name="l00321"></a><span class="lineno">  321</span><span class="comment">   *</span></div>
<div class="line"><a id="l00322" name="l00322"></a><span class="lineno">  322</span><span class="comment">   * If we are in thread W already (being invoked from earlier user completion handler):  Still post on thread W.</span></div>
<div class="line"><a id="l00323" name="l00323"></a><span class="lineno">  323</span><span class="comment">   * Otherwise we may well invoke handler synchronously (if surplus is available at the moment) which would</span></div>
<div class="line"><a id="l00324" name="l00324"></a><span class="lineno">  324</span><span class="comment">   * mean nested handler invocation, which we promised not to do (for good reason: if, say, their handler</span></div>
<div class="line"><a id="l00325" name="l00325"></a><span class="lineno">  325</span><span class="comment">   * is bracketed by a non-recursive lock, then they would get a deadlock trying to acquire the lock in</span></div>
<div class="line"><a id="l00326" name="l00326"></a><span class="lineno">  326</span><span class="comment">   * the 2nd -- inner -- handler execution). */</span></div>
<div class="line"><a id="l00327" name="l00327"></a><span class="lineno">  327</span>  <a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a2d397e09f2cfa198313ff5c31334080b">m_worker</a>.post([<span class="keyword">this</span>, target_peer, on_done_func = std::move(on_done_func)]</div>
<div class="line"><a id="l00328" name="l00328"></a><span class="lineno">  328</span>                  () <span class="keyword">mutable</span> <span class="comment">// To allow for the on_done_func to be move()d again.</span></div>
<div class="line"><a id="l00329" name="l00329"></a><span class="lineno">  329</span>  {</div>
<div class="line"><a id="l00330" name="l00330"></a><span class="lineno">  330</span>    <span class="comment">// We are in thread W.</span></div>
<div class="line"><a id="l00331" name="l00331"></a><span class="lineno">  331</span> </div>
<div class="line"><a id="l00332" name="l00332"></a><span class="lineno">  332</span>    FLOW_LOG_TRACE(<span class="stringliteral">&quot;Acceptor [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Handling async-accept request.&quot;</span>);</div>
<div class="line"><a id="l00333" name="l00333"></a><span class="lineno">  333</span> </div>
<div class="line"><a id="l00334" name="l00334"></a><span class="lineno">  334</span>    <span class="keyword">auto</span> new_req = make_unique&lt;User_request&gt;();</div>
<div class="line"><a id="l00335" name="l00335"></a><span class="lineno">  335</span>    new_req-&gt;m_target_peer = target_peer;</div>
<div class="line"><a id="l00336" name="l00336"></a><span class="lineno">  336</span>    new_req-&gt;m_on_done_func = std::move(on_done_func);</div>
<div class="line"><a id="l00337" name="l00337"></a><span class="lineno">  337</span> </div>
<div class="line"><a id="l00338" name="l00338"></a><span class="lineno">  338</span>    <span class="comment">// We are in steady state.  Make this one change....</span></div>
<div class="line"><a id="l00339" name="l00339"></a><span class="lineno">  339</span>    <a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a5d2e731d023d9c6465e01fa84a6e5138">m_pending_user_requests_q</a>.emplace(std::move(new_req)); <span class="comment">// (new_req may now be hosed.)</span></div>
<div class="line"><a id="l00340" name="l00340"></a><span class="lineno">  340</span>    <span class="comment">// ...and immediately handle it appropriately to get back into steady state:</span></div>
<div class="line"><a id="l00341" name="l00341"></a><span class="lineno">  341</span> </div>
<div class="line"><a id="l00342" name="l00342"></a><span class="lineno">  342</span>    <span class="keywordflow">if</span> (<a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#ac04049d9b4c38f2a46d7f26192b17b69">m_pending_results_q</a>.empty())</div>
<div class="line"><a id="l00343" name="l00343"></a><span class="lineno">  343</span>    {</div>
<div class="line"><a id="l00344" name="l00344"></a><span class="lineno">  344</span>      FLOW_LOG_TRACE(<span class="stringliteral">&quot;Acceptor [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: New async-accept request pushed onto deficit queue; &quot;</span></div>
<div class="line"><a id="l00345" name="l00345"></a><span class="lineno">  345</span>                     <span class="stringliteral">&quot;but there is no surplus (no pending results).  Will await results.&quot;</span>);</div>
<div class="line"><a id="l00346" name="l00346"></a><span class="lineno">  346</span>      <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00347" name="l00347"></a><span class="lineno">  347</span>    }</div>
<div class="line"><a id="l00348" name="l00348"></a><span class="lineno">  348</span>    <span class="comment">// else if (!m_pending_results_q.empty())</span></div>
<div class="line"><a id="l00349" name="l00349"></a><span class="lineno">  349</span> </div>
<div class="line"><a id="l00350" name="l00350"></a><span class="lineno">  350</span>    <span class="comment">/* If deficit existed *before* the request was pushed, and there&#39;s surplus too, then it wasn&#39;t steady state</span></div>
<div class="line"><a id="l00351" name="l00351"></a><span class="lineno">  351</span><span class="comment">     * pre-push.  Violates our invariant (see data member doc headers). */</span></div>
<div class="line"><a id="l00352" name="l00352"></a><span class="lineno">  352</span>    assert(<a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a5d2e731d023d9c6465e01fa84a6e5138">m_pending_user_requests_q</a>.size() == 1);</div>
<div class="line"><a id="l00353" name="l00353"></a><span class="lineno">  353</span> </div>
<div class="line"><a id="l00354" name="l00354"></a><span class="lineno">  354</span>    <span class="keyword">auto</span>&amp; peer_or_err_code = <a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#ac04049d9b4c38f2a46d7f26192b17b69">m_pending_results_q</a>.front();</div>
<div class="line"><a id="l00355" name="l00355"></a><span class="lineno">  355</span>    <span class="keywordflow">if</span> (holds_alternative&lt;Error_code&gt;(peer_or_err_code))</div>
<div class="line"><a id="l00356" name="l00356"></a><span class="lineno">  356</span>    {</div>
<div class="line"><a id="l00357" name="l00357"></a><span class="lineno">  357</span>      assert(<a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#ac04049d9b4c38f2a46d7f26192b17b69">m_pending_results_q</a>.size() == 1); <span class="comment">// An error always caps the queue (and never leaves it).</span></div>
<div class="line"><a id="l00358" name="l00358"></a><span class="lineno">  358</span>      FLOW_LOG_TRACE(<span class="stringliteral">&quot;Acceptor [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: New async-request pushed onto deficit queue; &quot;</span></div>
<div class="line"><a id="l00359" name="l00359"></a><span class="lineno">  359</span>                     <span class="stringliteral">&quot;and there is surplus in the form of a fatal error code.  Will feed error to the request &quot;</span></div>
<div class="line"><a id="l00360" name="l00360"></a><span class="lineno">  360</span>                     <span class="stringliteral">&quot;*without* popping it from surplus queue (size remains 1).&quot;</span>);</div>
<div class="line"><a id="l00361" name="l00361"></a><span class="lineno">  361</span>      <a class="code hl_function" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a8ff2e85b30532cb9778aa43c01931955">feed_error_result_to_deficit</a>(get&lt;Error_code&gt;(peer_or_err_code));</div>
<div class="line"><a id="l00362" name="l00362"></a><span class="lineno">  362</span>    }</div>
<div class="line"><a id="l00363" name="l00363"></a><span class="lineno">  363</span>    <span class="keywordflow">else</span></div>
<div class="line"><a id="l00364" name="l00364"></a><span class="lineno">  364</span>    {</div>
<div class="line"><a id="l00365" name="l00365"></a><span class="lineno">  365</span>      assert(holds_alternative&lt;Peer_ptr&gt;(peer_or_err_code));</div>
<div class="line"><a id="l00366" name="l00366"></a><span class="lineno">  366</span> </div>
<div class="line"><a id="l00367" name="l00367"></a><span class="lineno">  367</span>      FLOW_LOG_TRACE(<span class="stringliteral">&quot;Acceptor [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: New async-request pushed onto deficit queue; &quot;</span></div>
<div class="line"><a id="l00368" name="l00368"></a><span class="lineno">  368</span>                     <span class="stringliteral">&quot;and there is surplus in the form of a new peer handle.  Will feed handle to the request.  &quot;</span></div>
<div class="line"><a id="l00369" name="l00369"></a><span class="lineno">  369</span>                     <span class="stringliteral">&quot;Queue size will become [&quot;</span> &lt;&lt; (<a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#ac04049d9b4c38f2a46d7f26192b17b69">m_pending_results_q</a>.size() - 1) &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
<div class="line"><a id="l00370" name="l00370"></a><span class="lineno">  370</span> </div>
<div class="line"><a id="l00371" name="l00371"></a><span class="lineno">  371</span>      <a class="code hl_typedef" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a476652737140b761264000ffa4204e4a">Peer_ptr</a> peer(std::move(get&lt;Peer_ptr&gt;(peer_or_err_code)));</div>
<div class="line"><a id="l00372" name="l00372"></a><span class="lineno">  372</span>      <a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#ac04049d9b4c38f2a46d7f26192b17b69">m_pending_results_q</a>.pop();</div>
<div class="line"><a id="l00373" name="l00373"></a><span class="lineno">  373</span>      <a class="code hl_function" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#af1ca26531b9dd649046086e4e17f0ba3">feed_success_result_to_deficit</a>(std::move(peer));</div>
<div class="line"><a id="l00374" name="l00374"></a><span class="lineno">  374</span>    }</div>
<div class="line"><a id="l00375" name="l00375"></a><span class="lineno">  375</span>  }); <span class="comment">// m_worker.post()</span></div>
<div class="line"><a id="l00376" name="l00376"></a><span class="lineno">  376</span>} <span class="comment">// Native_socket_stream_acceptor::async_accept_impl()</span></div>
<div class="line"><a id="l00377" name="l00377"></a><span class="lineno">  377</span> </div>
<div class="line"><a id="l00378" name="l00378"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a6c7c14574c041bcfd1ccb45137b486b4">  378</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a6c7c14574c041bcfd1ccb45137b486b4">Native_socket_stream_acceptor::finalize_q_surplus_on_error</a>()</div>
<div class="line"><a id="l00379" name="l00379"></a><span class="lineno">  379</span>{</div>
<div class="line"><a id="l00380" name="l00380"></a><span class="lineno">  380</span>  <span class="keyword">using </span>std::get;</div>
<div class="line"><a id="l00381" name="l00381"></a><span class="lineno">  381</span>  <span class="keyword">using </span>std::holds_alternative;</div>
<div class="line"><a id="l00382" name="l00382"></a><span class="lineno">  382</span> </div>
<div class="line"><a id="l00383" name="l00383"></a><span class="lineno">  383</span>  <span class="comment">// We are in thread W.</span></div>
<div class="line"><a id="l00384" name="l00384"></a><span class="lineno">  384</span> </div>
<div class="line"><a id="l00385" name="l00385"></a><span class="lineno">  385</span>  assert((!<a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#ac04049d9b4c38f2a46d7f26192b17b69">m_pending_results_q</a>.empty()) &amp;&amp; holds_alternative&lt;Error_code&gt;(<a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#ac04049d9b4c38f2a46d7f26192b17b69">m_pending_results_q</a>.back()));</div>
<div class="line"><a id="l00386" name="l00386"></a><span class="lineno">  386</span> </div>
<div class="line"><a id="l00387" name="l00387"></a><span class="lineno">  387</span>  <span class="keywordflow">if</span> (<a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a5d2e731d023d9c6465e01fa84a6e5138">m_pending_user_requests_q</a>.empty())</div>
<div class="line"><a id="l00388" name="l00388"></a><span class="lineno">  388</span>  {</div>
<div class="line"><a id="l00389" name="l00389"></a><span class="lineno">  389</span>    FLOW_LOG_TRACE(<span class="stringliteral">&quot;Acceptor [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Fatal error pushed onto surplus queue; &quot;</span></div>
<div class="line"><a id="l00390" name="l00390"></a><span class="lineno">  390</span>                   <span class="stringliteral">&quot;but there is no deficit (no pending requests).  Will await async-accept request(s).&quot;</span>);</div>
<div class="line"><a id="l00391" name="l00391"></a><span class="lineno">  391</span>    <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00392" name="l00392"></a><span class="lineno">  392</span>  }</div>
<div class="line"><a id="l00393" name="l00393"></a><span class="lineno">  393</span>  <span class="comment">// else if (!m_pending_user_requests_q.empty())</span></div>
<div class="line"><a id="l00394" name="l00394"></a><span class="lineno">  394</span> </div>
<div class="line"><a id="l00395" name="l00395"></a><span class="lineno">  395</span>  <span class="comment">/* If surplus existed *before* the error was pushed, and there&#39;s deficit too, then it wasn&#39;t steady state pre-push.</span></div>
<div class="line"><a id="l00396" name="l00396"></a><span class="lineno">  396</span><span class="comment">   * Violates our pre-condition. */</span></div>
<div class="line"><a id="l00397" name="l00397"></a><span class="lineno">  397</span>  assert(<a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#ac04049d9b4c38f2a46d7f26192b17b69">m_pending_results_q</a>.size() == 1);</div>
<div class="line"><a id="l00398" name="l00398"></a><span class="lineno">  398</span> </div>
<div class="line"><a id="l00399" name="l00399"></a><span class="lineno">  399</span>  <span class="keyword">const</span> <span class="keyword">auto</span> err_code = get&lt;Error_code&gt;(<a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#ac04049d9b4c38f2a46d7f26192b17b69">m_pending_results_q</a>.front());</div>
<div class="line"><a id="l00400" name="l00400"></a><span class="lineno">  400</span>  FLOW_LOG_TRACE(<span class="stringliteral">&quot;Acceptor [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Fatal error pushed onto surplus queue; &quot;</span></div>
<div class="line"><a id="l00401" name="l00401"></a><span class="lineno">  401</span>                 <span class="stringliteral">&quot;and there is deficit (1+ pending requests).  Will feed error to all pending requests *without* &quot;</span></div>
<div class="line"><a id="l00402" name="l00402"></a><span class="lineno">  402</span>                 <span class="stringliteral">&quot;popping surplus queue, whose size remains 1.&quot;</span>);</div>
<div class="line"><a id="l00403" name="l00403"></a><span class="lineno">  403</span>  <a class="code hl_function" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a8ff2e85b30532cb9778aa43c01931955">feed_error_result_to_deficit</a>(err_code);</div>
<div class="line"><a id="l00404" name="l00404"></a><span class="lineno">  404</span>} <span class="comment">// Native_socket_stream_acceptor::finalize_q_surplus_on_error()</span></div>
<div class="line"><a id="l00405" name="l00405"></a><span class="lineno">  405</span> </div>
<div class="line"><a id="l00406" name="l00406"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#ab9744191a6b5d7d05b7b2b96fcda84d6">  406</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#ab9744191a6b5d7d05b7b2b96fcda84d6">Native_socket_stream_acceptor::finalize_q_surplus_on_success</a>()</div>
<div class="line"><a id="l00407" name="l00407"></a><span class="lineno">  407</span>{</div>
<div class="line"><a id="l00408" name="l00408"></a><span class="lineno">  408</span>  <span class="keyword">using </span>std::get;</div>
<div class="line"><a id="l00409" name="l00409"></a><span class="lineno">  409</span>  <span class="keyword">using </span>std::holds_alternative;</div>
<div class="line"><a id="l00410" name="l00410"></a><span class="lineno">  410</span> </div>
<div class="line"><a id="l00411" name="l00411"></a><span class="lineno">  411</span>  <span class="comment">// We are in thread W.</span></div>
<div class="line"><a id="l00412" name="l00412"></a><span class="lineno">  412</span> </div>
<div class="line"><a id="l00413" name="l00413"></a><span class="lineno">  413</span>  assert((!<a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#ac04049d9b4c38f2a46d7f26192b17b69">m_pending_results_q</a>.empty()) &amp;&amp; holds_alternative&lt;Peer_ptr&gt;(<a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#ac04049d9b4c38f2a46d7f26192b17b69">m_pending_results_q</a>.back()));</div>
<div class="line"><a id="l00414" name="l00414"></a><span class="lineno">  414</span> </div>
<div class="line"><a id="l00415" name="l00415"></a><span class="lineno">  415</span>  <span class="keywordflow">if</span> (<a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a5d2e731d023d9c6465e01fa84a6e5138">m_pending_user_requests_q</a>.empty())</div>
<div class="line"><a id="l00416" name="l00416"></a><span class="lineno">  416</span>  {</div>
<div class="line"><a id="l00417" name="l00417"></a><span class="lineno">  417</span>    FLOW_LOG_TRACE(<span class="stringliteral">&quot;Acceptor [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: New peer socket handle pushed onto surplus queue; &quot;</span></div>
<div class="line"><a id="l00418" name="l00418"></a><span class="lineno">  418</span>                   <span class="stringliteral">&quot;but there is no deficit (no pending requests).  Will await async-accept request(s).&quot;</span>);</div>
<div class="line"><a id="l00419" name="l00419"></a><span class="lineno">  419</span>    <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00420" name="l00420"></a><span class="lineno">  420</span>  }</div>
<div class="line"><a id="l00421" name="l00421"></a><span class="lineno">  421</span>  <span class="comment">// else if (!m_pending_user_requests_q.empty())</span></div>
<div class="line"><a id="l00422" name="l00422"></a><span class="lineno">  422</span> </div>
<div class="line"><a id="l00423" name="l00423"></a><span class="lineno">  423</span>  <span class="comment">/* If surplus existed *before* the handle was pushed, and there&#39;s deficit too, then it wasn&#39;t steady state pre-push.</span></div>
<div class="line"><a id="l00424" name="l00424"></a><span class="lineno">  424</span><span class="comment">   * Violates our pre-condition. */</span></div>
<div class="line"><a id="l00425" name="l00425"></a><span class="lineno">  425</span>  assert(<a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#ac04049d9b4c38f2a46d7f26192b17b69">m_pending_results_q</a>.size() == 1);</div>
<div class="line"><a id="l00426" name="l00426"></a><span class="lineno">  426</span> </div>
<div class="line"><a id="l00427" name="l00427"></a><span class="lineno">  427</span>  <a class="code hl_typedef" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a476652737140b761264000ffa4204e4a">Peer_ptr</a> peer(std::move(get&lt;Peer_ptr&gt;(<a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#ac04049d9b4c38f2a46d7f26192b17b69">m_pending_results_q</a>.front())));</div>
<div class="line"><a id="l00428" name="l00428"></a><span class="lineno">  428</span>  <a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#ac04049d9b4c38f2a46d7f26192b17b69">m_pending_results_q</a>.pop();</div>
<div class="line"><a id="l00429" name="l00429"></a><span class="lineno">  429</span>  FLOW_LOG_TRACE(<span class="stringliteral">&quot;Acceptor [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: New peer socket handle pushed onto surplus queue; &quot;</span></div>
<div class="line"><a id="l00430" name="l00430"></a><span class="lineno">  430</span>                 <span class="stringliteral">&quot;and there is deficit (1+ pending requests).  Will feed to next pending request, having &quot;</span></div>
<div class="line"><a id="l00431" name="l00431"></a><span class="lineno">  431</span>                 <span class="stringliteral">&quot;popped it from surplus queue (size is now 0).&quot;</span>);</div>
<div class="line"><a id="l00432" name="l00432"></a><span class="lineno">  432</span>  <a class="code hl_function" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#af1ca26531b9dd649046086e4e17f0ba3">feed_success_result_to_deficit</a>(std::move(peer));</div>
<div class="line"><a id="l00433" name="l00433"></a><span class="lineno">  433</span>} <span class="comment">// Native_socket_stream_acceptor::finalize_q_surplus_on_success()</span></div>
<div class="line"><a id="l00434" name="l00434"></a><span class="lineno">  434</span> </div>
<div class="line"><a id="l00435" name="l00435"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a8ff2e85b30532cb9778aa43c01931955">  435</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a8ff2e85b30532cb9778aa43c01931955">Native_socket_stream_acceptor::feed_error_result_to_deficit</a>(<span class="keyword">const</span> <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>&amp; err_code)</div>
<div class="line"><a id="l00436" name="l00436"></a><span class="lineno">  436</span>{</div>
<div class="line"><a id="l00437" name="l00437"></a><span class="lineno">  437</span>  assert(!<a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a5d2e731d023d9c6465e01fa84a6e5138">m_pending_user_requests_q</a>.empty());</div>
<div class="line"><a id="l00438" name="l00438"></a><span class="lineno">  438</span> </div>
<div class="line"><a id="l00439" name="l00439"></a><span class="lineno">  439</span>  <span class="keywordtype">size_t</span> idx = 0;</div>
<div class="line"><a id="l00440" name="l00440"></a><span class="lineno">  440</span>  <span class="keywordflow">do</span> <span class="comment">// while (!empty())</span></div>
<div class="line"><a id="l00441" name="l00441"></a><span class="lineno">  441</span>  {</div>
<div class="line"><a id="l00442" name="l00442"></a><span class="lineno">  442</span>    FLOW_LOG_TRACE(<span class="stringliteral">&quot;Acceptor [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Feeding to user async-accept request handler [&quot;</span> &lt;&lt; idx &lt;&lt; <span class="stringliteral">&quot;]: &quot;</span></div>
<div class="line"><a id="l00443" name="l00443"></a><span class="lineno">  443</span>                   <span class="stringliteral">&quot;Error code [&quot;</span> &lt;&lt; err_code &lt;&lt; <span class="stringliteral">&quot;] [&quot;</span> &lt;&lt; err_code.message() &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
<div class="line"><a id="l00444" name="l00444"></a><span class="lineno">  444</span>    <a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a5d2e731d023d9c6465e01fa84a6e5138">m_pending_user_requests_q</a>.front()-&gt;m_on_done_func(err_code);</div>
<div class="line"><a id="l00445" name="l00445"></a><span class="lineno">  445</span>    <a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a5d2e731d023d9c6465e01fa84a6e5138">m_pending_user_requests_q</a>.pop();</div>
<div class="line"><a id="l00446" name="l00446"></a><span class="lineno">  446</span> </div>
<div class="line"><a id="l00447" name="l00447"></a><span class="lineno">  447</span>    ++idx;</div>
<div class="line"><a id="l00448" name="l00448"></a><span class="lineno">  448</span>  }</div>
<div class="line"><a id="l00449" name="l00449"></a><span class="lineno">  449</span>  <span class="keywordflow">while</span> (!<a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a5d2e731d023d9c6465e01fa84a6e5138">m_pending_user_requests_q</a>.empty());</div>
<div class="line"><a id="l00450" name="l00450"></a><span class="lineno">  450</span>} <span class="comment">// Native_socket_stream_acceptor::feed_error_result_to_deficit()</span></div>
<div class="line"><a id="l00451" name="l00451"></a><span class="lineno">  451</span> </div>
<div class="line"><a id="l00452" name="l00452"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#af1ca26531b9dd649046086e4e17f0ba3">  452</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#af1ca26531b9dd649046086e4e17f0ba3">Native_socket_stream_acceptor::feed_success_result_to_deficit</a>(<a class="code hl_typedef" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a476652737140b761264000ffa4204e4a">Peer_ptr</a>&amp;&amp; peer)</div>
<div class="line"><a id="l00453" name="l00453"></a><span class="lineno">  453</span>{</div>
<div class="line"><a id="l00454" name="l00454"></a><span class="lineno">  454</span>  assert(!<a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a5d2e731d023d9c6465e01fa84a6e5138">m_pending_user_requests_q</a>.empty());</div>
<div class="line"><a id="l00455" name="l00455"></a><span class="lineno">  455</span> </div>
<div class="line"><a id="l00456" name="l00456"></a><span class="lineno">  456</span>  FLOW_LOG_TRACE(<span class="stringliteral">&quot;Acceptor [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Feeding to user async-accept request handler: &quot;</span></div>
<div class="line"><a id="l00457" name="l00457"></a><span class="lineno">  457</span>                 <span class="stringliteral">&quot;Socket stream [&quot;</span> &lt;&lt; *peer &lt;&lt; <span class="stringliteral">&quot;].  User request queue size post-pop is &quot;</span></div>
<div class="line"><a id="l00458" name="l00458"></a><span class="lineno">  458</span>                 <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; (<a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a5d2e731d023d9c6465e01fa84a6e5138">m_pending_user_requests_q</a>.size() - 1) &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
<div class="line"><a id="l00459" name="l00459"></a><span class="lineno">  459</span>  <span class="keyword">auto</span>&amp; head_request = <a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a5d2e731d023d9c6465e01fa84a6e5138">m_pending_user_requests_q</a>.front();</div>
<div class="line"><a id="l00460" name="l00460"></a><span class="lineno">  460</span>  *head_request-&gt;m_target_peer = std::move(*peer);</div>
<div class="line"><a id="l00461" name="l00461"></a><span class="lineno">  461</span>  head_request-&gt;m_on_done_func(<a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>());</div>
<div class="line"><a id="l00462" name="l00462"></a><span class="lineno">  462</span>  <a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a5d2e731d023d9c6465e01fa84a6e5138">m_pending_user_requests_q</a>.pop();</div>
<div class="line"><a id="l00463" name="l00463"></a><span class="lineno">  463</span>} <span class="comment">// Native_socket_stream_acceptor::feed_success_result_to_deficit()</span></div>
<div class="line"><a id="l00464" name="l00464"></a><span class="lineno">  464</span> </div>
<div class="line"><a id="l00465" name="l00465"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#ac5b70ff8230fa49c99ccb6954db71c75">  465</a></span><span class="keyword">const</span> <a class="code hl_class" href="classipc_1_1util_1_1Shared__name.html">Shared_name</a>&amp; <a class="code hl_function" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#ac5b70ff8230fa49c99ccb6954db71c75">Native_socket_stream_acceptor::absolute_name</a>()<span class="keyword"> const</span></div>
<div class="line"><a id="l00466" name="l00466"></a><span class="lineno">  466</span><span class="keyword"></span>{</div>
<div class="line"><a id="l00467" name="l00467"></a><span class="lineno">  467</span>  <span class="keywordflow">return</span> <a class="code hl_variable" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a35785c842d668ee13f556580d0045511">m_absolute_name</a>;</div>
<div class="line"><a id="l00468" name="l00468"></a><span class="lineno">  468</span>}</div>
<div class="line"><a id="l00469" name="l00469"></a><span class="lineno">  469</span> </div>
<div class="line"><a id="l00470" name="l00470"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a03f0ad84b5d21920a58be5e95f12e69f">  470</a></span>std::ostream&amp; <a class="code hl_function" href="namespaceipc_1_1transport.html#a61c80019823537694f925275dccb4f3f">operator&lt;&lt;</a>(std::ostream&amp; os, <span class="keyword">const</span> <a class="code hl_class" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html">Native_socket_stream_acceptor</a>&amp; val)</div>
<div class="line"><a id="l00471" name="l00471"></a><span class="lineno">  471</span>{</div>
<div class="line"><a id="l00472" name="l00472"></a><span class="lineno">  472</span>  <span class="keywordflow">return</span> os &lt;&lt; <span class="stringliteral">&quot;sh_name[&quot;</span> &lt;&lt; val.<a class="code hl_function" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#ac5b70ff8230fa49c99ccb6954db71c75">absolute_name</a>() &lt;&lt; <span class="stringliteral">&quot;]@&quot;</span> &lt;&lt; <span class="keyword">static_cast&lt;</span><span class="keyword">const </span><span class="keywordtype">void</span>*<span class="keyword">&gt;</span>(&amp;val);</div>
<div class="line"><a id="l00473" name="l00473"></a><span class="lineno">  473</span>}</div>
<div class="line"><a id="l00474" name="l00474"></a><span class="lineno">  474</span> </div>
<div class="line"><a id="l00475" name="l00475"></a><span class="lineno">  475</span>} <span class="comment">// namespace ipc::transport</span></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Native__socket__stream__acceptor_html"><div class="ttname"><a href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html">ipc::transport::Native_socket_stream_acceptor</a></div><div class="ttdoc">A server object that binds to a Shared_name and listens for incoming Native_socket_stream connect att...</div><div class="ttdef"><b>Definition:</b> <a href="native__socket__stream__acceptor_8hpp_source.html#l00102">native_socket_stream_acceptor.hpp:105</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Native__socket__stream__acceptor_html_a0de2b6072026584ff1d46538533ed68b"><div class="ttname"><a href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a0de2b6072026584ff1d46538533ed68b">ipc::transport::Native_socket_stream_acceptor::S_RESOURCE_TYPE_ID</a></div><div class="ttdeci">static const Shared_name &amp; S_RESOURCE_TYPE_ID</div><div class="ttdoc">Shared_name relative-folder fragment (no separators) identifying this resource type.</div><div class="ttdef"><b>Definition:</b> <a href="native__socket__stream__acceptor_8hpp_source.html#l00120">native_socket_stream_acceptor.hpp:120</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Native__socket__stream__acceptor_html_a2063fff89b58cc5b07ee7651f9e42366"><div class="ttname"><a href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a2063fff89b58cc5b07ee7651f9e42366">ipc::transport::Native_socket_stream_acceptor::async_accept_impl</a></div><div class="ttdeci">void async_accept_impl(Peer *target_peer, On_peer_accepted_func &amp;&amp;on_done_func)</div><div class="ttdoc">Non-template impl of async_accept().</div><div class="ttdef"><b>Definition:</b> <a href="native__socket__stream__acceptor_8cpp_source.html#l00310">native_socket_stream_acceptor.cpp:310</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Native__socket__stream__acceptor_html_a2d397e09f2cfa198313ff5c31334080b"><div class="ttname"><a href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a2d397e09f2cfa198313ff5c31334080b">ipc::transport::Native_socket_stream_acceptor::m_worker</a></div><div class="ttdeci">flow::async::Single_thread_task_loop m_worker</div><div class="ttdoc">A single-threaded async task loop that starts in constructor and ends in destructor.</div><div class="ttdef"><b>Definition:</b> <a href="native__socket__stream__acceptor_8hpp_source.html#l00363">native_socket_stream_acceptor.hpp:363</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Native__socket__stream__acceptor_html_a35785c842d668ee13f556580d0045511"><div class="ttname"><a href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a35785c842d668ee13f556580d0045511">ipc::transport::Native_socket_stream_acceptor::m_absolute_name</a></div><div class="ttdeci">const Shared_name m_absolute_name</div><div class="ttdoc">See absolute_name().</div><div class="ttdef"><b>Definition:</b> <a href="native__socket__stream__acceptor_8hpp_source.html#l00335">native_socket_stream_acceptor.hpp:335</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Native__socket__stream__acceptor_html_a476652737140b761264000ffa4204e4a"><div class="ttname"><a href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a476652737140b761264000ffa4204e4a">ipc::transport::Native_socket_stream_acceptor::Peer_ptr</a></div><div class="ttdeci">boost::movelib::unique_ptr&lt; Peer &gt; Peer_ptr</div><div class="ttdoc">Short-hand for internally stored PEER-state sync_io::Native_socket_stream in m_pending_results_q.</div><div class="ttdef"><b>Definition:</b> <a href="native__socket__stream__acceptor_8hpp_source.html#l00244">native_socket_stream_acceptor.hpp:244</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Native__socket__stream__acceptor_html_a5d2e731d023d9c6465e01fa84a6e5138"><div class="ttname"><a href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a5d2e731d023d9c6465e01fa84a6e5138">ipc::transport::Native_socket_stream_acceptor::m_pending_user_requests_q</a></div><div class="ttdeci">std::queue&lt; User_request::Ptr &gt; m_pending_user_requests_q</div><div class="ttdoc">Queue storing deficit async-accept requests queued up due to lacking pending ready peer socket handle...</div><div class="ttdef"><b>Definition:</b> <a href="native__socket__stream__acceptor_8hpp_source.html#l00346">native_socket_stream_acceptor.hpp:346</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Native__socket__stream__acceptor_html_a6c7c14574c041bcfd1ccb45137b486b4"><div class="ttname"><a href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a6c7c14574c041bcfd1ccb45137b486b4">ipc::transport::Native_socket_stream_acceptor::finalize_q_surplus_on_error</a></div><div class="ttdeci">void finalize_q_surplus_on_error()</div><div class="ttdoc">In thread W, in steady state except for an Error_code just pushed to the back of m_pending_results_q ...</div><div class="ttdef"><b>Definition:</b> <a href="native__socket__stream__acceptor_8cpp_source.html#l00378">native_socket_stream_acceptor.cpp:378</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Native__socket__stream__acceptor_html_a71e907b904bcc8aff0042ca7efcc783b"><div class="ttname"><a href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a71e907b904bcc8aff0042ca7efcc783b">ipc::transport::Native_socket_stream_acceptor::~Native_socket_stream_acceptor</a></div><div class="ttdeci">~Native_socket_stream_acceptor()</div><div class="ttdoc">Destroys this acceptor which will stop listening in the background and cancel any pending completion ...</div><div class="ttdef"><b>Definition:</b> <a href="native__socket__stream__acceptor_8cpp_source.html#l00131">native_socket_stream_acceptor.cpp:131</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Native__socket__stream__acceptor_html_a77795acb028a95a4804f9b3ef18d99b0"><div class="ttname"><a href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a77795acb028a95a4804f9b3ef18d99b0">ipc::transport::Native_socket_stream_acceptor::Native_socket_stream_acceptor</a></div><div class="ttdeci">Native_socket_stream_acceptor(flow::log::Logger *logger_ptr, const Shared_name &amp;absolute_name, Error_code *err_code=0)</div><div class="ttdoc">Creates the Native_socket_stream_acceptor and immediately begins listening in the background,...</div><div class="ttdef"><b>Definition:</b> <a href="native__socket__stream__acceptor_8cpp_source.html#l00037">native_socket_stream_acceptor.cpp:37</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Native__socket__stream__acceptor_html_a7928656e82682f101af9a2fd6d4019cc"><div class="ttname"><a href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a7928656e82682f101af9a2fd6d4019cc">ipc::transport::Native_socket_stream_acceptor::m_next_peer_socket</a></div><div class="ttdeci">asio_local_stream_socket::Peer_socket m_next_peer_socket</div><div class="ttdoc">Unix domain peer socket, always empty/unconnected while a background m_acceptor.async_accept() is pro...</div><div class="ttdef"><b>Definition:</b> <a href="native__socket__stream__acceptor_8hpp_source.html#l00388">native_socket_stream_acceptor.hpp:388</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Native__socket__stream__acceptor_html_a8ff2e85b30532cb9778aa43c01931955"><div class="ttname"><a href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a8ff2e85b30532cb9778aa43c01931955">ipc::transport::Native_socket_stream_acceptor::feed_error_result_to_deficit</a></div><div class="ttdeci">void feed_error_result_to_deficit(const Error_code &amp;err_code)</div><div class="ttdoc">In thread W, gets back to steady state by feeding the given Error_code (which must be the sole elemen...</div><div class="ttdef"><b>Definition:</b> <a href="native__socket__stream__acceptor_8cpp_source.html#l00435">native_socket_stream_acceptor.cpp:435</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Native__socket__stream__acceptor_html_a946663a2ab4070babdc80091f5adfb28"><div class="ttname"><a href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#a946663a2ab4070babdc80091f5adfb28">ipc::transport::Native_socket_stream_acceptor::m_acceptor</a></div><div class="ttdeci">boost::movelib::unique_ptr&lt; asio_local_stream_socket::Acceptor &gt; m_acceptor</div><div class="ttdoc">Unix domain socket acceptor.</div><div class="ttdef"><b>Definition:</b> <a href="native__socket__stream__acceptor_8hpp_source.html#l00369">native_socket_stream_acceptor.hpp:369</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Native__socket__stream__acceptor_html_ab5fa8c28eb4dbe2ae2e4f1b25d520857"><div class="ttname"><a href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#ab5fa8c28eb4dbe2ae2e4f1b25d520857">ipc::transport::Native_socket_stream_acceptor::On_peer_accepted_func</a></div><div class="ttdeci">flow::async::Task_asio_err On_peer_accepted_func</div><div class="ttdoc">Short-hand for callback called on new peer-to-peer connection; or on unrecoverable error.</div><div class="ttdef"><b>Definition:</b> <a href="native__socket__stream__acceptor_8hpp_source.html#l00241">native_socket_stream_acceptor.hpp:241</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Native__socket__stream__acceptor_html_ab9744191a6b5d7d05b7b2b96fcda84d6"><div class="ttname"><a href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#ab9744191a6b5d7d05b7b2b96fcda84d6">ipc::transport::Native_socket_stream_acceptor::finalize_q_surplus_on_success</a></div><div class="ttdeci">void finalize_q_surplus_on_success()</div><div class="ttdoc">In thread W, in steady state, introduces the just-established peer socket handle into the state machi...</div><div class="ttdef"><b>Definition:</b> <a href="native__socket__stream__acceptor_8cpp_source.html#l00406">native_socket_stream_acceptor.cpp:406</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Native__socket__stream__acceptor_html_ac04049d9b4c38f2a46d7f26192b17b69"><div class="ttname"><a href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#ac04049d9b4c38f2a46d7f26192b17b69">ipc::transport::Native_socket_stream_acceptor::m_pending_results_q</a></div><div class="ttdeci">std::queue&lt; std::variant&lt; Peer_ptr, Error_code &gt; &gt; m_pending_results_q</div><div class="ttdoc">Queue storing surplus finalized async-accept results queued up due to lacking async_accept() requests...</div><div class="ttdef"><b>Definition:</b> <a href="native__socket__stream__acceptor_8hpp_source.html#l00355">native_socket_stream_acceptor.hpp:355</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Native__socket__stream__acceptor_html_ac5b70ff8230fa49c99ccb6954db71c75"><div class="ttname"><a href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#ac5b70ff8230fa49c99ccb6954db71c75">ipc::transport::Native_socket_stream_acceptor::absolute_name</a></div><div class="ttdeci">const Shared_name &amp; absolute_name() const</div><div class="ttdoc">Returns the full name/address to which the constructor bound, or attempted to bind,...</div><div class="ttdef"><b>Definition:</b> <a href="native__socket__stream__acceptor_8cpp_source.html#l00465">native_socket_stream_acceptor.cpp:465</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Native__socket__stream__acceptor_html_af1ca26531b9dd649046086e4e17f0ba3"><div class="ttname"><a href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#af1ca26531b9dd649046086e4e17f0ba3">ipc::transport::Native_socket_stream_acceptor::feed_success_result_to_deficit</a></div><div class="ttdeci">void feed_success_result_to_deficit(Peer_ptr &amp;&amp;peer)</div><div class="ttdoc">In thread W, gets back to steady state by feeding the given just-connected peer socket (which must ha...</div><div class="ttdef"><b>Definition:</b> <a href="native__socket__stream__acceptor_8cpp_source.html#l00452">native_socket_stream_acceptor.cpp:452</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Native__socket__stream__acceptor_html_af52346c8df9efc457efaec35bc6c0807"><div class="ttname"><a href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html#af52346c8df9efc457efaec35bc6c0807">ipc::transport::Native_socket_stream_acceptor::on_next_peer_socket_or_error</a></div><div class="ttdeci">void on_next_peer_socket_or_error(const Error_code &amp;sys_err_code)</div><div class="ttdoc">Handler for incoming connection on m_acceptor.</div><div class="ttdef"><b>Definition:</b> <a href="native__socket__stream__acceptor_8cpp_source.html#l00181">native_socket_stream_acceptor.cpp:181</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1sync__io_1_1Native__socket__stream_html"><div class="ttname"><a href="classipc_1_1transport_1_1sync__io_1_1Native__socket__stream.html">ipc::transport::sync_io::Native_socket_stream</a></div><div class="ttdoc">Implements both sync_io::Native_handle_sender and sync_io::Native_handle_receiver concepts by using a...</div><div class="ttdef"><b>Definition:</b> <a href="sync__io_2native__socket__stream_8hpp_source.html#l00150">native_socket_stream.hpp:151</a></div></div>
<div class="ttc" id="aclassipc_1_1util_1_1Shared__name_html"><div class="ttname"><a href="classipc_1_1util_1_1Shared__name.html">ipc::util::Shared_name</a></div><div class="ttdoc">String-wrapping abstraction representing a name uniquely distinguishing a kernel-persistent entity fr...</div><div class="ttdef"><b>Definition:</b> <a href="shared__name_8hpp_source.html#l00241">shared_name.hpp:242</a></div></div>
<div class="ttc" id="aclassipc_1_1util_1_1Shared__name_html_ae89e1e061f87ffe0288514e254837595"><div class="ttname"><a href="classipc_1_1util_1_1Shared__name.html#ae89e1e061f87ffe0288514e254837595">ipc::util::Shared_name::str</a></div><div class="ttdeci">const std::string &amp; str() const</div><div class="ttdoc">Returns (sans copying) ref to immutable entire wrapped name string, suitable to pass into sys calls w...</div><div class="ttdef"><b>Definition:</b> <a href="shared__name_8cpp_source.html#l00140">shared_name.cpp:140</a></div></div>
<div class="ttc" id="aipc__core_2src_2ipc_2transport_2error_8hpp_html"><div class="ttname"><a href="ipc__core_2src_2ipc_2transport_2error_8hpp.html">error.hpp</a></div></div>
<div class="ttc" id="anamespaceipc_1_1transport_1_1asio__local__stream__socket_html_a05656e297b98f4c370841d2f9be52a5f"><div class="ttname"><a href="namespaceipc_1_1transport_1_1asio__local__stream__socket.html#a05656e297b98f4c370841d2f9be52a5f">ipc::transport::asio_local_stream_socket::Endpoint</a></div><div class="ttdeci">Protocol::endpoint Endpoint</div><div class="ttdoc">Short-hand for boost.asio Unix domain peer stream-socket endpoint.</div><div class="ttdef"><b>Definition:</b> <a href="asio__local__stream__socket__fwd_8hpp_source.html#l00117">asio_local_stream_socket_fwd.hpp:117</a></div></div>
<div class="ttc" id="anamespaceipc_1_1transport_1_1asio__local__stream__socket_html_a154986f10d30d850de86fc3924766e66"><div class="ttname"><a href="namespaceipc_1_1transport_1_1asio__local__stream__socket.html#a154986f10d30d850de86fc3924766e66">ipc::transport::asio_local_stream_socket::Acceptor</a></div><div class="ttdeci">Protocol::acceptor Acceptor</div><div class="ttdoc">Short-hand for boost.asio Unix domain stream-socket acceptor (listening guy) socket.</div><div class="ttdef"><b>Definition:</b> <a href="asio__local__stream__socket__fwd_8hpp_source.html#l00111">asio_local_stream_socket_fwd.hpp:111</a></div></div>
<div class="ttc" id="anamespaceipc_1_1transport_1_1asio__local__stream__socket_html_a1788f9dbd896bb71b3693f9ae25b40ae"><div class="ttname"><a href="namespaceipc_1_1transport_1_1asio__local__stream__socket.html#a1788f9dbd896bb71b3693f9ae25b40ae">ipc::transport::asio_local_stream_socket::Peer_socket</a></div><div class="ttdeci">Protocol::socket Peer_socket</div><div class="ttdoc">Short-hand for boost.asio Unix domain peer stream-socket (usually-connected-or-empty guy).</div><div class="ttdef"><b>Definition:</b> <a href="asio__local__stream__socket__fwd_8hpp_source.html#l00114">asio_local_stream_socket_fwd.hpp:114</a></div></div>
<div class="ttc" id="anamespaceipc_1_1transport_1_1asio__local__stream__socket_html_af872520154fc00afaa59c7eec607a225"><div class="ttname"><a href="namespaceipc_1_1transport_1_1asio__local__stream__socket.html#af872520154fc00afaa59c7eec607a225">ipc::transport::asio_local_stream_socket::endpoint_at_shared_name</a></div><div class="ttdeci">Endpoint endpoint_at_shared_name(flow::log::Logger *logger_ptr, const Shared_name &amp;absolute_name, Error_code *err_code)</div><div class="ttdoc">Returns an Endpoint corresponding to the given absolute Shared_name, so that an Acceptor or Peer_sock...</div><div class="ttdef"><b>Definition:</b> <a href="detail_2asio__local__stream__socket_8cpp_source.html#l00028">asio_local_stream_socket.cpp:28</a></div></div>
<div class="ttc" id="anamespaceipc_1_1transport_1_1error_html_adfef15ef4e76cc55d652fbd9c2797297afe29343445a7bf167cc186a44bd2c6ed"><div class="ttname"><a href="namespaceipc_1_1transport_1_1error.html#adfef15ef4e76cc55d652fbd9c2797297afe29343445a7bf167cc186a44bd2c6ed">ipc::transport::error::Code::S_OBJECT_SHUTDOWN_ABORTED_COMPLETION_HANDLER</a></div><div class="ttdeci">@ S_OBJECT_SHUTDOWN_ABORTED_COMPLETION_HANDLER</div><div class="ttdoc">Async completion handler is being called prematurely, because underlying object is shutting down,...</div></div>
<div class="ttc" id="anamespaceipc_1_1transport_html"><div class="ttname"><a href="namespaceipc_1_1transport.html">ipc::transport</a></div><div class="ttdoc">Flow-IPC module providing transmission of structured messages and/or low-level blobs (and more) betwe...</div><div class="ttdef"><b>Definition:</b> <a href="asio__local__stream__socket_8cpp_source.html#l00031">asio_local_stream_socket.cpp:32</a></div></div>
<div class="ttc" id="anamespaceipc_1_1transport_html_a33de1c256addb3964b839dc2dd407d24"><div class="ttname"><a href="namespaceipc_1_1transport.html#a33de1c256addb3964b839dc2dd407d24">ipc::transport::Shared_name</a></div><div class="ttdeci">util::Shared_name Shared_name</div><div class="ttdoc">Convenience alias for the commonly used type util::Shared_name.</div><div class="ttdef"><b>Definition:</b> <a href="transport__fwd_8hpp_source.html#l00084">transport_fwd.hpp:84</a></div></div>
<div class="ttc" id="anamespaceipc_1_1transport_html_a61c80019823537694f925275dccb4f3f"><div class="ttname"><a href="namespaceipc_1_1transport.html#a61c80019823537694f925275dccb4f3f">ipc::transport::operator&lt;&lt;</a></div><div class="ttdeci">std::ostream &amp; operator&lt;&lt;(std::ostream &amp;os, const Bipc_mq_handle &amp;val)</div><div class="ttdoc">Prints string representation of the given Bipc_mq_handle to the given ostream.</div><div class="ttdef"><b>Definition:</b> <a href="bipc__mq__handle_8cpp_source.html#l01029">bipc_mq_handle.cpp:1029</a></div></div>
<div class="ttc" id="anamespaceipc_1_1util_html_ae6ac47812a90d1287c61e0b7de7bc4f5"><div class="ttname"><a href="namespaceipc_1_1util.html#ae6ac47812a90d1287c61e0b7de7bc4f5">ipc::util::String_view</a></div><div class="ttdeci">flow::util::String_view String_view</div><div class="ttdoc">Short-hand for Flow's String_view.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00115">util_fwd.hpp:115</a></div></div>
<div class="ttc" id="anamespaceipc_html_a4ccdeed058222c635745a4dc830e99f7"><div class="ttname"><a href="namespaceipc.html#a4ccdeed058222c635745a4dc830e99f7">ipc::Log_component</a></div><div class="ttdeci">Log_component</div><div class="ttdoc">The flow::log::Component payload enumeration containing various log components used by Flow-IPC inter...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00322">common.hpp:323</a></div></div>
<div class="ttc" id="anamespaceipc_html_aa3192e586cc45d3e7c22463bf2760f89"><div class="ttname"><a href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">ipc::Error_code</a></div><div class="ttdeci">flow::Error_code Error_code</div><div class="ttdoc">Short-hand for flow::Error_code which is very common.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00298">common.hpp:298</a></div></div>
<div class="ttc" id="anative__socket__stream__acceptor_8hpp_html"><div class="ttname"><a href="native__socket__stream__acceptor_8hpp.html">native_socket_stream_acceptor.hpp</a></div></div>
<div class="ttc" id="astructipc_1_1util_1_1Native__handle_html"><div class="ttname"><a href="structipc_1_1util_1_1Native__handle.html">ipc::util::Native_handle</a></div><div class="ttdoc">A monolayer-thin wrapper around a native handle, a/k/a descriptor a/k/a FD.</div><div class="ttdef"><b>Definition:</b> <a href="native__handle_8hpp_source.html#l00062">native_handle.hpp:63</a></div></div>
<div class="ttc" id="astructipc_1_1util_1_1Native__handle_html_a11bd62ce0a7bef4bdfe666201c26d4dc"><div class="ttname"><a href="structipc_1_1util_1_1Native__handle.html#a11bd62ce0a7bef4bdfe666201c26d4dc">ipc::util::Native_handle::null</a></div><div class="ttdeci">bool null() const</div><div class="ttdoc">Returns true if and only if m_native_handle equals S_NULL_HANDLE.</div><div class="ttdef"><b>Definition:</b> <a href="native__handle_8cpp_source.html#l00061">native_handle.cpp:61</a></div></div>
<div class="ttc" id="async__io_2native__socket__stream_8hpp_html"><div class="ttname"><a href="sync__io_2native__socket__stream_8hpp.html">native_socket_stream.hpp</a></div></div>
<div class="ttc" id="async__io_2native__socket__stream__acceptor_8hpp_html"><div class="ttname"><a href="sync__io_2native__socket__stream__acceptor_8hpp.html">native_socket_stream_acceptor.hpp</a></div></div>
</div><!-- fragment --></div><!-- contents -->
<!-- start footer part -->
<hr class="footer"/><address class="footer"><small>
Generated on Thu May 2 2024 23:56:38 for Flow-IPC by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
</small></address>
</body>
</html>
